Is it possible that through Starlifting / Stellar Husbandry, a civilization could in theory produce a near infinite amount of resources from just their home star via starlifting?

Let's say a K3 civilization has colonized their home galaxy and every star in the entire galaxy is encased in a dyson swarm which is gravitationally squeezing out heavy metals from stars for raw materials while keeping the star young and healthy. If we assume that almost every single K3 civilization or higher practices starlifting across just our local group, is it possible that even the Heat Death of the Universe could be at least postponed for trillions or even quadrillions of years? Or would entropy, dark energy and or vacuum decay eventually ruin everything?